ui-tree.c

   1 /* ui-tree.c: functions for tree output
   2  *
   3  * Copyright (C) 2006 Lars Hjemli
   4  *
   5  * Licensed under GNU General Public License v2
   6  *   (see COPYING for full license text)
   7  */
   8
   9 #include "cgit.h"
  10
  11 char *curr_rev;
  12 char *match_path;
  13 int header = 0;
  14
  15 static void print_object(const unsigned char *sha1, char *path)
  16 {
  17         enum object_type type;
  18         unsigned char *buf;
  19         unsigned long size, lineno, start, idx;
  20
  21         type = sha1_object_info(sha1, &size);
  22         if (type == OBJ_BAD) {
  23                 cgit_print_error(fmt("Bad object name: %s",
  24                                      sha1_to_hex(sha1)));
  25                 return;
  26         }
  27
  28         buf = read_sha1_file(sha1, &type, &size);
  29         if (!buf) {
  30                 cgit_print_error(fmt("Error reading object %s",
  31                                      sha1_to_hex(sha1)));
  32                 return;
  33         }
  34
  35         html("<table class='blob'>\n");
  36         idx = 0;
  37         start = 0;
  38         lineno = 0;
  39         while(idx < size) {
  40                 if (buf[idx] == '\n') {
  41                         buf[idx] = '\0';
  42                         htmlf("<tr><td class='no'>%d</td><td class='txt'>",
  43                               ++lineno);
  44                         html_txt(buf + start);
  45                         html("</td></tr>\n");
  46                         start = idx + 1;
  47                 }
  48                 idx++;
  49         }
  50         html("</table>\n");
  51 }
  52
  53
  54 static int ls_item(const unsigned char *sha1, const char *base, int baselen,
  55                    const char *pathname, unsigned int mode, int stage)
  56 {
  57         char *name;
  58         char *fullpath;
  59         enum object_type type;
  60         unsigned long size = 0;
  61
  62         name = xstrdup(pathname);
  63         fullpath = fmt("%s%s%s", cgit_query_path ? cgit_query_path : "",
  64                        cgit_query_path ? "/" : "", name);
  65
  66         type = sha1_object_info(sha1, &size);
  67         if (type == OBJ_BAD && !S_ISDIRLNK(mode)) {
  68                 htmlf("<tr><td colspan='3'>Bad object: %s %s</td></tr>",
  69                       name,
  70                       sha1_to_hex(sha1));
  71                 return 0;
  72         }
  73
  74         html("<tr><td class='ls-mode'>");
  75         html_filemode(mode);
  76         html("</td><td>");
  77         if (S_ISDIRLNK(mode)) {
  78                 htmlf("<a class='ls-mod' href='");
  79                 html_attr(fmt(cgit_repo->module_link,
  80                               name,
  81                               sha1_to_hex(sha1)));
  82                 html("'>");
  83                 html_txt(name);
  84                 html("</a>");
  85         } else if (S_ISDIR(mode)) {
  86                 cgit_tree_link(name, NULL, "ls-dir", cgit_query_head,
  87                                curr_rev, fullpath);
  88         } else {
  89                 cgit_tree_link(name, NULL, "ls-blob", cgit_query_head,
  90                                curr_rev, fullpath);
  91         }
  92         htmlf("</td><td class='ls-size'>%li</td>", size);
  93
  94         html("<td>");
  95         cgit_log_link("log", NULL, "button", cgit_query_head, curr_rev,
  96                       fullpath);
  97         html("</td></tr>\n");
  98         free(name);
  99         return 0;
 100 }
 101
 102 static void ls_head()
 103 {
 104         html("<table class='list'>\n");
 105         html("<tr class='nohover'>");
 106         html("<th class='left'>Mode</th>");
 107         html("<th class='left'>Name</th>");
 108         html("<th class='right'>Size</th>");
 109         html("<th/>");
 110         html("</tr>\n");
 111         header = 1;
 112 }
 113
 114 static void ls_tail()
 115 {
 116         if (!header)
 117                 return;
 118         html("</table>\n");
 119         header = 0;
 120 }
 121
 122 static void ls_tree(const unsigned char *sha1, char *path)
 123 {
 124         struct tree *tree;
 125
 126         tree = parse_tree_indirect(sha1);
 127         if (!tree) {
 128                 cgit_print_error(fmt("Not a tree object: %s",
 129                                      sha1_to_hex(sha1)));
 130                 return;
 131         }
 132
 133         ls_head();
 134         read_tree_recursive(tree, "", 0, 1, NULL, ls_item);
 135         ls_tail();
 136 }
 137
 138
 139 static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
 140                      const char *pathname, unsigned mode, int stage)
 141 {
 142         static int state;
 143         static char buffer[PATH_MAX];
 144         char *url;
 145
 146         if (state == 0) {
 147                 memcpy(buffer, base, baselen);
 148                 strcpy(buffer+baselen, pathname);
 149                 url = cgit_pageurl(cgit_query_repo, "tree",
 150                                    fmt("h=%s&amp;path=%s", curr_rev, buffer));
 151                 html("/");
 152                 cgit_tree_link(xstrdup(pathname), NULL, NULL, cgit_query_head,
 153                                curr_rev, buffer);
 154
 155                 if (strcmp(match_path, buffer))
 156                         return READ_TREE_RECURSIVE;
 157
 158                 if (S_ISDIR(mode)) {
 159                         state = 1;
 160                         ls_head();
 161                         return READ_TREE_RECURSIVE;
 162                 } else {
 163                         print_object(sha1, buffer);
 164                         return 0;
 165                 }
 166         }
 167         ls_item(sha1, base, baselen, pathname, mode, stage);
 168         return 0;
 169 }
 170
 171
 172 /*
 173  * Show a tree or a blob
 174  *   rev:  the commit pointing at the root tree object
 175  *   path: path to tree or blob
 176  */
 177 void cgit_print_tree(const char *rev, char *path)
 178 {
 179         unsigned char sha1[20];
 180         struct commit *commit;
 181         const char *paths[] = {path, NULL};
 182
 183         if (!rev)
 184                 rev = cgit_query_head;
 185
 186         curr_rev = xstrdup(rev);
 187         if (get_sha1(rev, sha1)) {
 188                 cgit_print_error(fmt("Invalid revision name: %s", rev));
 189                 return;
 190         }
 191         commit = lookup_commit_reference(sha1);
 192         if (!commit || parse_commit(commit)) {
 193                 cgit_print_error(fmt("Invalid commit reference: %s", rev));
 194                 return;
 195         }
 196
 197         html("path: <a href='");
 198         html_attr(cgit_pageurl(cgit_query_repo, "tree", fmt("h=%s", rev)));
 199         html("'>root</a>");
 200
 201         if (path == NULL) {
 202                 ls_tree(commit->tree->object.sha1, NULL);
 203                 return;
 204         }
 205
 206         match_path = path;
 207         read_tree_recursive(commit->tree, NULL, 0, 0, paths, walk_tree);
 208         ls_tail();
 209 }